Table 1.
Clinical and pathologic findings of 11 cases of metaplastic carcinoma of the breast with histologic subtype classification.
| Case | Histologic subtype | Hormonal receptors | HER2 mutation | Axillary lymphadenopathies | Distant metastases |
|---|---|---|---|---|---|
| 1 | Squamous cel | + | + | – | – |
| 2 | Carcino-sarcoma | – | – | + | – |
| 3 | Spindle cell | – | – | – | – |
| 4 | Matrix producing | – | – | + | + |
| 5 | Carcino-sarcoma | – | – | – | – |
| 6 | Spindle cell fibromatosis-like variant | – | – | – | – |
| 7 | Squamous cell | – | – | + | – |
| 8 | Squamous cell | + | – | – | – |
| 9 | Carcino-sarcoma | – | – | – | – |
| 10 | Matrix producing | – | – | – | – |
| 11 | Matrix producing | – | – | + | + |
Note: + positive/present; – negative/absent.